{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["cell line", "DNA", "RNA", "protein", "cell type"], "input": "A transcription factor , NF-AT , which is essential for early T-cell gene activation , seems to be a specific target of cyclosporin A and FK506 action because transcription directed by this protein is blocked in T cells treated with these drugs, with little or no effect on other transcription factors such as AP-1 and NF-kappa B ."}
{"cell line": [], "DNA": [], "RNA": [], "protein": ["transcription factor", "NF-AT", "transcription factors", "AP-1", "NF-kappa B"], "cell type": ["T cells"]}